/Engine/Source/Runtime/ImageCore/Public/ImageParallelFor.h
ComputeImageLinearAverage compute the average linear color of the image image can be any pixel format parallel processing is used, but the result is not machine-dependent
namespace FImageCore { [FLinearColor](API\Runtime\Core\Math\FLinearColor) FImageCore::ComputeImageLinearAverage ( const [FImageView](API\Runtime\ImageCore\FImageView) & Image ) }